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Bericht zu ISOLDE Report on ISOLDE

Bericht zu ISOLDE Report on ISOLDE. Forschen für die Zukunft. Susanne Kreim 30. November 2012 ISOLDE – numbers and developments Low- energy experiments Post- accelerated beams and upgrades. KHuK Jahrestagung Bad Honnef. ISOLDE – German Contribution. Class-A lab. REX-ISOLDE U Bonn

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Bericht zu ISOLDE Report on ISOLDE

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  1. Bericht zu ISOLDEReport on ISOLDE Forschen für die Zukunft Susanne Kreim 30. November 2012 ISOLDE – numbersanddevelopments Low-energyexperiments Post-acceleratedbeamsandupgrades KHuK Jahrestagung Bad Honnef

  2. ISOLDE – German Contribution Class-A lab REX-ISOLDE U Bonn U Darmstadt U Köln LMU Müchen TU München Exotische Kerne RILIS U Mainz Target/front-end U Münster U Darmstadt U Mainz U Darmstadt U Köln LMU München REX WITCH MINIBALL CONTROL ROOM COLLAPS CRIS ISOLTRAP GSI MPIK U Mainz U Tübingen GSI MPIK TU Dresden U Greifswald

  3. ISOLDE Statistics - General • ISOLDE Collaboration: 14 memberstates + CERN • BMBF funding (~10% contributiontothe ISOLDE Collaboration) • German contributionto ISOLDE: 60 k€ / year • German contributionto HIE-ISOLDE: 40 k€ / year • > 60 publications / year (amongthem ~10 Phys. Rev. Lett.) • http://isolde.web.cern.ch/ISOLDE/science/ISOLDE_Publication_list.php Exotische Kerne

  4. ISOLDE Statistics - Physics ~ 80% reliability! • 13 experiments out of 51 scheduled in 2012 have a spokespersonfrom a German institute Exotische Kerne 1 shift = 8h ofprotons on thetarget

  5. Dual RILIS Operation 2012 • RILIS = ResonanceIonization Laser Ion Source • Upgraded in 2011 with solid-state Ti:Sa laser system • Dual dye and Ti:Sa setup allowed for a record time of >2700h RILIS ionized beam for ISOLDE users in 2012 • Narrow band-width Ti:sapphire (NB-Ti:Sa) laser for in-source laser spectroscopy and isomer separation • established data communication between RILIS and ISOLDE experiments • Applied for laser spectroscopy of Au isotopes Hochtechnologie für die Grundlagenforschung

  6. High-selective ion-beam production with Laser Ion Source & Trap (LIST) • 1. ISOLDE Target: • Production of exotic nuclei • 2. RILIS: • Element selective ionization • 3. LIST: • Full Isobar Suppression Extractor RILIS Laser Beams ISOLDE target Selectivity Gain for 22Mg / 22Na ratio First successful LIST online run ! 205Fr S = 2400 1. 2. 3. LIST KUL Windmill Detector

  7. COLLAPS Harvest Proposalsat COLLAPS: Data Taking, in Preparation, Just Completed Atomkerne - Bausteine unserer Welt IS484 (G. Neyens, Leuven) IS508 (B. Cheal, Manch.) IS529 (M.L. Bissell, Leuven) IS517 (Ch. Geppert, Mainz) IS497 (D. Yordanov, MPIK) Be Mg Cu, Ga,Zn IS439 (K. Flanagan, CERN) PLB 703 (2011) IS457 (B. Cheal, Manch.) PRC 84, 024303 (2011) IS519 (B. Cheal, Manch.) PRC 86, 034329 (2012) Cd Pr K, Ca, Mn IS480 (K. Blaum, MPIK Heidelberg) PRL 108, 042504 (2012) IS449 (W. Nörtershäuser & Ch. Geppert, Mainz) PRL 108, 142501 (2012)

  8. WITCH: Weak Interaction Trap forChargedParticles V S Standardmodell der Teilchenphysik Combination of Penning traps with MAC-E filter: • Production of a scattering free source • Measurement of recoil energy distribution after b-decay • b-n angular correlation a • Test of standard model complementary to high energy physics Best test case for WITCH 35Ar 9

  9. WITCH Online Runs 2011/2012 • First data sets with 35Ar taken 2011 • Found several imperfections of the WITCH system and worked on it • Took data in 2012 with statistics for a precision of a few % precision for a of 35Ar • Still had hints for ionization in the system • Data analysis and further offline tests will reveal systematic effects Standardmodell der Teilchenphysik 10

  10. 82Zn forNuclearStructure and Astrophysics • High-precisionPenning-trap massspectrometrywith ISOLTRAP • Helps to pin down nuclear models to study the behavior of nuclei at the extremes of stability B Kerne und Sterne • Its determination is important for modelling of the crust of neutron stars R. N. Wolf et al., PRL, submitted (2012)

  11. MR-TOF MS at ISOLTRAP Multi-reflection time-of-flight mass separator (MR-TOF MS) at ISOLTRAP experiment plus detector as stand-alonesystem Particlestravelupto 34km beforeejection Direct time-of-flight mass measurements become possible, ex. 54Ca (ISOLDE yield 10/s) Excellentsynergybetweenprecisionexperimentandcurrenttheoreticaldevelopments (A. Schwenk, TU Darmstadt) Die Grenzen der Stabilität von Kernen R. N. Wolf et al., Nucl. Instr. and Meth. A 686, 82-90 (2012), S. Kreimet al., INTC-P-317, IS 532 (2011)

  12. Shell stabilization in N=80 isotones? Systematics of B(E2) values in N=80 isotones: • Post-accelerated beam from REX-ISOLDE • Method: Coulomb excitation in inverse kinematics at the MINIBALL setup • MINIBALL array of 8 3-fold segmented high-purity Germanium clusters • Particle identification via double-sided Si detectors Die Landkarte der Nuklide View at the opened target chamber: • measured B(E2;2+0+) valuesof 140Nd and 142Sm • Trend of increasing B(E2) continuous beyond Z=58 within errors • Observation of local suppression in collectivity at Z=58 • New data provide evidence for “shell stabilization” mechanism introduced in PRL 96, 122501 (2006). AG Pietralla

  13. Coulomb Excitation of 123,128Cd @ Miniball IS524 123Cd: Level scheme has to be sorted out Die Entstehung der Elemente IS477 128Cd: B(E2)-value has to be extracted

  14. Octupole Deformation in 224Ra Miniball Triple Cluster 224Ra Fundamentale Symmetrien DSSD Particle detector • 224Ragoodcandidatetolookfor CP-violatingstaticelectricdipolemoment Mass number A

  15. Near Future: HIE-ISOLDE Project Energy Upgrade: The HIE-ISOLDE project concentrates on the construction of the SC LINAC for post-accelerated radioactive ion beams to 5.5 MeV/u in 2014 and 10 MeV/u by 2016 Beam Quality Upgrade: RFQ cooler and buncher Higher mass resolving power HRS Instrumente der Hadronen- und Kernphysik Intensity Upgrade: The design study for technical feasibility and cost estimate for operating the facility at 15 kW once LINAC4 and PS Booster are online. 16

  16. Status of HIE-ISOLDE • Civil Engineering almost finished • Proton at ISOLDE stop 17.12.2012 • Cooling and Ventilation work about to start • Cavity prototypes designed and built • Procurement main issue:cryogenic system • New study for integration of the cryo-module into the shielding tunnel • CERN accelerator stop on 25.2.2013 • ISOLDE hall will become a radioactive controlled area • During LS 1 safety shoes and hard hats mandatory Instrumente der Hadronen- und Kernphysik

  17. Heavy-ionstorage ring TSR • 2/2012: TDR presentedat INTC • 4/2012: M. Grieser et al., Eur. Phys. J. Special Topics 207, 1-117 (2012) • Collaboration Board defined • 5/2012: CERN Research Board gaveskeletronapproval • „experiment“ now, maybe „facility“ after LS2 • 8/2012: Mandate ofthe TSR Integration Study Working Group • 10/2012: TSR@ISOLDE Workshop • Working Groups andresponsibilitiesweredefined Status und Perspektiven • Possibleplanning: • 2014: buildingprovided • 2014:disassembly • 2015:assemblyandcommissioning • 2016:startup Darmstadt, Dresden, Frankfurt, Gießen, Greifwald Heidelberg, Jena, Köln, Mainz, München

  18. Education / Outreach • ~20 PhDstudents / year • About 10 CERN summerstudents • ~10 Studentsforinternships, Bachelor or Master thesis • Activevisitsprogramforstudentsfrom German universitiesandhigh-schoolsorganizedby ISOLDE members • Magazine „Kultur und Technik“ ofthe „Deutsche Museum“, issue 04/2012 • Report on workas a scientistat CERN • Example ISOLTRAP Experiment at ISOLDE Ausbildung in Hadronen- und Kernphysik

  19. Summary • ISOLDE offers a complementarytechniquetoexistingfacilities in Germany • ISOLDE remains a pioneering ISOL installationbothatlevelofdesigningandproductionoffrontierphysics • German groupsobtainednumerousscientifichighlightsat ISOLDE in recentyears • HIE-ISOLDE will bridgethegapto EURISOL • higherenergyandintensityofproton beam formoreneutron-richnuclei • TSR@ISOLDE offersuniqueperspectives Slideswereprovidedby: Maria Borge, Sabine Bönig, Martin Breitenfeldt, Yacine Kadi, Magda Kowalska, Kim Kreim, Norbert Pietralla, Peter Reiter, Sebastian Rothe, Marcus Scheck, Klaus Wendt, DeyanYordanov Internationale Experimente mit deutscher Beteiligung

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